常見例句用作副詞 (adv.)They had perforce to abandon the attempt on the summit.他們必然要放棄峰會上的企圖。When a horse is shot, the man on the horseback perforce falls down.馬被擊中時，馬背上的人必然會跌落下來。He stood up, and they perforce stood up with him.他站起身來, 他們只好同他一起站起身來。 返回 perforce